A jury has found Google liable for copyright infringement in its use of Java in Android, but has not managed to decide whether that infringement was protected by rules governing "fair use."

The verdict, delivered Monday after a week of deliberations by the jury, is a partial victory for Oracle in its lawsuit against Google, but Oracle will have to wait longer -- possibly for a retrial -- to see whether Google will escape liability by claiming fair use.

Google's attorney, Robert Van Nest, immediately told the judge that Google would file for a mistrial. Google's argument will be that the same jury must decide both the copyright infringement and fair use issues.